There are two ways to answer this, depending on what kind of ounces you're asking about:

* Fluid ounces: There are 16 fluid ounces in 1 cup. So, 5 cups is equal to 5 cups * 16 ounces/cup = 80 fluid ounces.

* Weight ounces (avoirdupois ounces): This is trickier because it depends on what the cups are filled with. Different liquids and solids have different densities. For example:

* 5 cups of water weigh approximately 40 ounces.

* 5 cups of sugar weigh approximately 70 ounces.

So, to get a precise answer for weight ounces, you need to know what the cups are filled with.