Final answer:
To calculate the product (800) x (3 x 10^-1) in scientific notation, multiply the coefficients and add the exponents. The product is 2400.
Step-by-step explanation:
To calculate the product (800) x (3 x 10^-1) and give the answer in scientific notation, we need to multiply the coefficients and add the exponents. 
Here are the steps: 
 - Multiply the coefficients: 800 x 3 = 2400
  - Add the exponents: 10^0 (since 10^-1 is the same as 1/10^1) 
  
 Therefore, the product is 2400 x 10^0, which simplifies to just 2400.