Find amount of benzoic acid in dissolution
$\pu{0.037L}$ of water dissolves $0.037\times \pu{1.7g}$ of benzoic acid at $\pu{0^\circ C}$ = $\pu{0.0629g}$.

Therefore $1 - 0.0629 = \pu{0.9371g}$ benzoic acid remains undissolved