1 pound of ground coffee is a standard amount that fills about 4.79 cups. If you poured it into a loose pile, it would be 8.37 in wide and 3.77 in tall, which is about the size of a quart.

In kitchen measures
4.79 cups
230 tsp · 76.7 tbsp · 4.79 cups
about the size of a quart
Ground coffee typically ranges 0.35–0.48 g/mL depending on how it's packed. A firmly packed scoop weighs more.