<s>[INST] def find_largest_rectangular_area(height, width, rectangles):
    """
    This function calculates the area of the largest rectangular area in a list of rectangles.

    Parameters:
    height (int): The height of the rectangle.
    width (int): The width of the rectangle.
    rectangles (list): A list of rectangles. Each rectangle is represented as a tuple of (height, width).

    Returns:
    int: The area of the largest rectangle.
    """[/INST]