The four areas in the kitchen that need to be cleaned on a weekly basis are:
1. Countertops – Clean all work surfaces where food is prepared.
2. Sink and Faucets – Ensure that the sink and taps are free from food debris and grease.
3. Stovetop – Clean the stovetop to remove any spills or stains caused by cooking.
4. Refrigerator – Wipe down the interior of the fridge, especially shelves and drawers.
On the day of her examination, Riya sharpened her pencil from both ends as shown below. 
The diameter of the cylindrical and conical part of the pencil is 4.2 mm. If the height of each conical part is 2.8 mm and the length of the entire pencil is 105.6 mm, find the total surface area of the pencil.