A thin pork chop is anything smaller than 1 inch in thickness. Again, a 1-inch pork chop takes about 20-25 minutes. A 1 1/2-inch pork chop will take between 25-30 minutes.
Thicker pork chops are anything thicker than 1 1/2 inches. On average, a 1 1/2-inch chop will take 25-30 minutes to bake. A 2-inch chop takes about 35-40 minutes to bake.
You can shave off a couple of minutes from the overall cooking time. If you are working with 1-inch or thicker chops, I would take away at least 5 minutes.
The best way to know when your chops are done is to test their internal temperature, which should be 145ºF (63ºC) at the thickest part.
This is a pretty low temperature, so usually, people would bake the chops for hours (at least 1 1/2 hours) to get the most tender results.