Agree with others silver something.. can't make out comb type?We got 2 of these pullets at Tractor Supply but the sales person was not sure what they are. I can't seem to find any matches on Google Image Search.
View attachment 2306893
To look at possibilities.. they get their chicks from Hoover..
Clean legs and face, non crested.. Silver laced.. Seabright, Orpington, Wyandotte... maybe old English bantam.. I don't see Serama offered..
https://hoovershatchery.com/baby-chicks.html
Skin color is seen on the sole of the foot. Lobe color can be hard to make out this young, but another good indicator.