To convert ounces to grams, you can use the conversion factor:
1 ounce = 28.3495 grams.
Now, to convert 7 ounces to grams:
\[ 7 , \text{oz} \times 28.3495 , \text{g/oz} = 198.4465 , \text{g} \]
Rounding to two decimal places:
\[ 7 , \text{oz} = 198.45 , \text{g} \]
So, the answer is:
7 oz = 198.45 g