How long and at what temperature to youcook a 4.5kg ham?

For a 4.5 kg (about 10 lb) ham, you should cook it at a temperature of 160°C (325°F) for approximately 15-18 minutes per pound if it's fully cooked and just needs to be heated. This means the total cooking time would be around 2 hours and 30 minutes to 3 hours. Always ensure the internal temperature reaches 60°C (140°F) for safe consumption. Let it rest before slicing for the best flavor and texture.