To express \( 6.35 \times 10^6 \) in scientific notation to two decimal places, we can retain the same value since it is already in scientific notation.
Therefore, \( 6.35 \times 10^6 \) remains:
\[ 6.35 \times 10^6 \]
Thus, the answer is \( 6.35 \times 10^6 \).