Hi there.
Man, your chicks are at that UHGly phase.
I leave free choice feeders with as much as they want to eat all day long... especially if they aren't able to free range and forage. Water should always be available.
Noting chickens don't eat or drink when they are sleeping. I collect my feed every night to avoid rodents, raccoons, and other possible chicken predators/parasite vectors.
I try to let every body out within an hour or so after (or at) sunrise, making sure it's as early as possible during the short days of winter when they went to roost before 5 pm. But this will vary for you and changes for some people according to their predator load and seasonally.
Whether you put feed in the coop or run is a personal choice. I keep it in the run because I don't want any extra moisture or POOP inside my coop. Some keep it in their coop because it helps them avoid feeding other birds (white crowned sparrows are my free loaders) during daytime hours.
Once fully grown... most chickens will consume about 1/4 # per day of feed. If you are finding yourself way over that, then it's good to check who else is eating at your station and/or internal parasite load... IF waste is not the issue. If waste is an issue raising the feeder level with their back can help and even wetting it to make a mash for some people makes a big difference. My flock isn't wasteful... and being free range with flock raiser feed so oyster shell is on the side (not included in the measurement as it is when you feed layer) ... my birds (mostly fowl dual purpose breeds) consume closer 1/5 (.18-.20 #) each per day. But it can vary with the weather.
Most rules regarding chickens aren't written in stone. Just don't give more than 10% of total daily intake in treats... and avoid thinking "grains" must be good to add in.. as they do not have the added vitamins, minerals, and important amino acids added in like our boring LOOKING rations do. It's always important not to diminish protein too far.