About 5 hours for a 10-lb ham.
I'd plan on at least two days in the fridge.
You should cook a 10 lb ham at 350 degrees for about 2.5 to 3 hours.
It is pre-cooked....so you don't have to cook it at all. You may eat it cold. If you prefer to eat it warm or hot you may warm in microwave or oven. The best way to heat a ham in the oven is to place it in a glass dish and cover the top of it with tinfoil...then bake at 350 degrees. The amount of time to bake is based on how warm or hot you want the ham. Cook it to your desired temp and serve.
A 20 lb ham should be cooked for about 4 to 5 hours at 325F until it reaches an internal temperature of 140F.
do not cook it is precooked. heat at 350 for 20 min/lb
Surf the link to the USDA web site and scroll down. All your questions will be answered.
If the ham is fully cooked, there is no need to cook it any further. You could serve it just as it is...even cold. You may wish to heat the ham before serving it, but that shouldn't take very long in the oven, maybe an hour at 350 degrees. The crock pot could take a lot longer and would over-cook the ham.
The price an availability of this product will vary widely depending on location and flavoring of ham. The price of this ham ranges from $3.17/lb-$5.67/lb.
20 to 25 minutes per lb at 325. Wrap loosely in foil to prevent drying out.
Usual you cook a ham 20 minutes per pound at 325
In 1930 one lb of ham costed around $2.00