If $89\mathrm{.}2$ grams of carbonic acid are sealed in a $2\mathrm{.}00L$ soda bottle at room temperature $(298K)$ and decompose completely via the equation below, what would be the final pressure of carbon dioxide assuming it had the full $2\mathrm{.}00L$ in which to expand?

$H_{2}C{O}_3(aq)H_{2}O(I)+C{O}_2(g)$