A cubical container with side 2 m has a small hole with a cap at point C as shown. The water level is upto point D. (BC=0.5 m and BD=1.5 m). If container is given an acceleration of $8\mathrm{m}/{\mathrm{s}}^2$ and the hole is opened simultaneously, find the amount of water that will spill out of the container (in litres).