Need Ham Help! (Quick!)

Hi y'all! I've never made ham before and I'm serving it for brunch.

My mom said it's already "cooked" so I'll I'm doing is heating it up.

I just wrapped it in tin-foil and stuck it in the oven. Is that right?

I followed the directions for the temperature and cooking time (275 degrees for 3 hours).

Thanks! Just don't want to mess this up!!!

Re: Need Ham Help! (Quick!)

Tent the foil so it doesn't stick to the ham. Also, I pour some water in the pan to keep it from drying out. Not a lot, just an inch or so.