Answer:
Yes, she can.
Explanation:
2 7/16 is less than 3 (less than 2 1/2, actually)
1 7/8 is almost 2,
So the sum will be less than 2 1/2 + 2 + 1/2 = 5. This sum is less than 6, so Gina can ship as she wants.
_____
The actual total weight is 4 13/16 pounds,