[tex]V_1[/tex] - volume without pots and pans
[tex]V_2[/tex] - volume with pots and pans
[tex]V_2-V_1[/tex] - volume of pots and pans
[tex]V_1=17\cdot23\cdot h=391h\ in^3\\ V_2=391(h+0.6)=391h+234.6\ in^3\\
V_2-V_1=391h+234.6-391h\\
V_2-V_1=234.6 \ in ^3[/tex]