There are 16 ounces in a pound. Here's how to calculate the total:

* Ounces in 2 pounds: 2 pounds * 16 ounces/pound = 32 ounces

* Total ounces: 32 ounces + 10 ounces = 42 ounces

So, 2 pounds and 10 ounces is equal to 42 ounces.