2.5 cups - see sources/related links for a converter.
That is 22 cups.
22 cups is 176 fluid ounces.
There are 8 ounces in a cup. To answer your question, divide 22 by 8. There are 2.75, or two and three quarters cups in 22 ounces.
1 US fluid ounce = 0.125 US cups 22 Us fluid ounces = 2.75 US cups
2.75 cups 1 cup = 8 ounces 1 ounce = 0.12 cup
ANSWER 10 lbs of granulated sugar = 22 3/4 US cups
That would be approximately 10 cups.
That is approximately 170 fl oz.
It is about 22/3 cups, taking the density of sugar to be 1.587g/cm3 (from Wikipedia page for sucrose) and using Google Calculator for the calculation.
There are 8 tablespoons of powder in a 4-serving box of instant pudding with sugar.
1 pint = 16 fluid ounces 1 fluid ounce = 0.0625 pint
If you use 12 ounce cups, you need 1360 ounces of drink. That is one drink per person. There are 64 ounces in a gallon, therefore you need at least 22 gallons of drink.