Common housekeeping tasks in a retail store include:
1. Cleaning floors and shelves: Regular cleaning to maintain a neat and pleasant environment for customers.
2. Organizing products: Ensuring that products are properly stocked, labeled, and arranged for easy customer access.
3. Maintaining store displays: Updating product displays regularly to keep the store visually appealing.
4. Waste management: Emptying trash bins and ensuring the store remains clean and hygienic.
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.