Because the blank parts on both sides of the figure are equal (the volume of glue and bottle is the same), the height of this bottle can be regarded as 8cm+2cm= 10cm.

Then the bottom area equals 32.4 divided by 10 equals 3.24.

There is glue, 8cm high.

The volume of glue is 8 times 3.24 equals 25.92 cubic centimeters.