This is the Goldilocks zone of chicken marinating. Maybe you planned ahead just a tiny bit. You prepped the marinade before you walked the dog or while you folded that one never-ending pile of socks. Two hours is the perfect balance of intention and reality.
At this point, your marinade has done some real work. The acid (like lemon juice or vinegar) has started to tenderize the outer layers. The flavors have had time to actually move in and make themselves comfortable.
Marinate
It’s like leaving a note for your roommate—two hours later, they’ve read it, thought about it, and maybe even responded. You’ll get distinct, lovely flavor in every bite. This is the chicken you can serve to guests without a disclaimer.