Answer
$3.0×10^{4} cm^{3}$
Work Step by Step
Volume = Length× Width × Height
= 252.56 cm× 18.23 cm × 6.5 cm
The result must be reported with no more significant figures as in the measurement with the few significant figures.Since 6.5 has two significant figures, the result should not have more than two significant figures; thus, it is $3.0×10^{4} cm^{3}$