Manuel has saved $253.32 and plans to save an additional $50 each month for the next 12 months.
To find out how much he will have after a year, we can calculate the total savings he will add in one year:
\[ 50 \text{ dollars/month} \times 12 \text{ months} = 600 \text{ dollars} \]
Now, we add this amount to his current savings:
\[ 253.32 \text{ dollars} + 600 \text{ dollars} = 853.32 \text{ dollars} \]
Therefore, after a year of savings, Manuel will have:
\[ \boxed{853.32} \]