Answer
The mass of the ice is 24 grams.
Work Step by Step
The heat required to melt the ice is 8 kJ. We can find the mass of the ice:
$Q = m~L$
$m = \frac{Q}{L}$
$m = \frac{8~kJ}{333~kJ/kg}$
$m = 0.024~kg$
$m = 24~grams$
The mass of the ice is 24 grams.