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[Cassandragrenr]

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[Krugerrand]

Chickens can dig pretty deep. If you aren't going 2 foot below ground level, it sounds like it could hurt their feet when they dig.

 

[DobieLover]

I don't see why not, but I'm asking just in case haha

The 'why not' is because chickens instinctively scratch and DIG. And I mean DIG!
Having wire under their feet risks injury.
Installing an 18-24" wide predator apron is extremely effective against digging predators and is much less labor intensive than digging a trench and burying wire.

The outer edges are pinned to the earth with HD landscape pins. You can just let the grass grow up through the wire.
A digging predators instincts tell them to go right up to the edge of the pen and start digging. They will hit the wire. They may back up and little and try again. They hit the wire.

 

[Percheron chick]

It will be of more value if you put it on top of the ground outside the coop. I would run it a few inches up the side of the coop. Wire it to hardware cloth then cover with dirt