5 oz chocolate chips = a little over 3/4 cup of chocolate chips

by the way, there is no such thing as a dry ounce. Most of the people who answered had a general idea. Here is how it really works:

there are two types of ounces: fluid ounces and ounces. Fluid ounces are a unit of volume. Ounces how many dry ounces in a cup are a unit of weight. When a recipe calls for something in ounces (oz) it refers to the weight of the ingredient. These two types of ounces are not the same and they are not interchangeable.